This creation is about a portable negative ion air cleaner that can adjust the direction of negative ion emission. For a portable air cleaner with a negative ion emission circuit that can cause the emission end to emit negative ions, a slot seat is provided on the back of the portable air cleaner. The internal conductive contact piece body communicates with the regular polygonal conductive sleeve body fixed on the corresponding clamping seat, and the human body object can be used as a loop to promote the increase in the potential difference and continue to increase the number of negative ion emissions. The chute is set in accordance with the clamping leg of the regular polygon of the socket body or the distance between the opposite sides, so that the socket body can be adjusted to be inserted into the socket base at different corners according to the direction of the negative ion emission, and then the emission end can be changed The direction of the head is to achieve the effect of air purification; by using the negative ion air cleaner slot seat plug sleeve to connect the clamping seat according to the needs of the use, it can be placed, attached to the suction clip to the mask, clothing, equipment, or suspended Hang on the neck or wristband, and use the different corners of the regular polygon conductive sleeve body fixed on the clamping base to insert into the slot base, to quickly and easily change and adjust the emission end of the negative ion air cleaner The direction and direction increase the number of negative ion emission in a specific direction and range, so as to achieve a practical creator who can effectively improve the efficiency and function of air purification.本創作為有關於一種可調整負離子發射方向之攜帶式負離子空氣清淨器,為於一具有負離子發射電路可促使發射端頭發射負離子之攜帶式空氣清淨器,在其背部設有插槽座以利內部之導電觸接片體與對應之夾置座上固接的正多邊形導電插套體連通,而可利用人體物體為迴路,促使電位差加大,持續增大負離子發射數量,且插槽座之滑槽係配合插套體正多邊形之夾腳或相對邊之間距而設置,使可依照負離子發射方向需求,調整插套體以不同之邊角插置於插槽座中,進以改變發射端頭的指向,達到空氣清淨之效用;藉依使用之需求於負離子空氣清淨器插槽座插套連接夾置座,而可以擺置、嵌扣吸夾附加於口罩、衣服、機具上、或懸吊於頸部或手環上使用,